Nevada Zinc Corporation (“Nevada Zinc” or the “Company”)
(TSX-V:NZN) is very pleased to report the assay results from eight
reverse circulation drill holes recently completed on the Company’s
Lone Mountain zinc project (“the Project”).
Drill hole LM16-56, at the Discovery Zone area,
intersected a broad zone of mineralization commencing at a depth of
164.59 metres and continuing for a hole length of 100.58 metres
(330 feet) that averaged 7.0% zinc+lead. This is the deepest test
of the Discovery Zone to-date and the zone remains open to further
expansion below this depth.
Six of the eight holes were drilled to test for
the presence of shallow, non-sulfide, zinc-lead mineralization in
areas proximal to historic small-scale mine operations on the west
side of the Mountain View Mine Property, situated within the
boundaries of the Project. Most of the drill holes intersected
significant zinc-lead mineralization at shallow depths associated
with brecciated and fractured sedimentary rocks of the Devils Gate
Formation. At a depth of only 6.1 metres from surface,
drill hole LM-16-57 intersected 6.4% zinc+lead mineralization
over a hole length of 47.24 metres (155 feet). Drill holes
LM-57, 58 and 59 appear to have intersected historic workings or
other near surface poorly consolidated material and therefore did
not have complete sample recovery included in the zones of
mineralization.
Drilling to-date, between surface and 250
metres, has identified mineralization for more than 450 metres
along the main trend from the west side of the Discovery Zone
area to the east side of the Mountain View Mine Property.
Drill hole LM-16-55 and 56 were drilled to test
the northwesterly and down dip part on the Discovery Zone and the
extremely broad zone of mineralization in drill hole LM-16-56 is
the deepest test on the Discovery Zone to-date.
The current drilling program is part of a work
program designed to evaluate the potential of the Project to host
near surface zinc-lead resources that could potentially be mined
using low cost open pit mining techniques. The majority of the
drill holes reported to-date from the Mountain View Mine Property
and the Discovery Zone area of the Project have intersected near
surface zinc-lead mineralization that is now known to extend from
surface to a depth of approximately 250 metres beyond which it
remains open to further expansion.
President and CEO, Bruce Durham commented, “I am
very pleased that drill hole assay results continue to confirm the
presence of significant shallow zinc mineralization on the Mountain
View Mine Property and that we have been able to extend the
mineralization at the Discovery Zone area. Our next round of
drilling will continue to target very near surface
mineralization at the Mountain View Mine Property as well as well
as deeper mineralization at the Discovery Zone area. For the
remainder of August we will focus on various initiatives for a
number of our Yukon based gold projects as we concurrently plan our
next drill program at Lone Mountain which is to commence
shortly.”
Highlights
- Drill Hole LM-16-56 intersected a 100.58 metre interval
of mineralization with an average grade of 7.0% zinc+lead at a down
hole depth of 164.6 metres. The first 15.24 metre (50 foot)
interval within the broad mineralized zone assayed 20.24%
zinc+lead.
- Drill Hole LM-16-57 drilled near the surface expression
of the mineralization and proximal to the historic ‘Extension
Shaft’ intersected mineralization commencing at a downhole depth of
6.1 metres that assayed 6.4% zinc+lead over a hole length of
47.24 metres (155 feet).
- In drill hole LM-16-57, nine sample intervals, each of 5 feet
in length were not recovered for technical reasons in areas that
are likely to have been mineralized. Intervals with no sample
recovery were averaged into overall averages with zero grade.
Similarly LM16-58 and 59 had several unrecovered sample
intervals.
- The drill hole collar distribution for the holes in this
release and this Phase 4 drill program span approximately 450
metres (see accompanying Plan Map).
- The zinc-lead target tested in the short drill holes on the
Mountain View Mine Property is one of two or more zinc-lead zones
in the area near historic small scale mining at the Mountain View
Mine that was apparently focused on narrow high grade zinc rich
fractures with the material hand sorted and direct shipped to a
smelter for processing. The Company has done no testing of the zinc
mineralized zones on the Mountain View Mine Property more than 100
metres below surface.
- All zinc-lead mineralization intersected to-date on the Project
is non-sulphide in nature (principally hemimorphite) the style of
mineralization that historically provided 80% of the world’s zinc
metal.
- The Company has completed initial studies showing the
mineralization can be easily upgraded to the grade of a potentially
shippable concentrate and as well the Company has completed studies
showing this mineralization is easily dissolved using readily
accessible sulphuric acid. While not definitive, the early studies
are supportive of the idea that this mineralization can be
processed using existing technology.
Drill Hole Information
RC Hole |
LM16-55 |
|
|
|
|
|
Easting |
563068 |
|
|
|
|
|
Northing |
4385357 |
|
|
|
|
|
Az. |
210 |
degrees |
|
|
|
|
Dip |
-90 |
degrees |
|
|
|
|
Depth |
243.84 |
metres |
|
|
|
|
|
|
|
|
|
|
|
From (m) |
To (m) |
Interval (m) |
Zn (%) |
Pb (%) |
Zn+Pb (%) |
|
144.78 |
147.83 |
3.05 |
1.61 |
0.36 |
1.97 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
RC Hole |
LM16-56 |
|
|
|
|
|
Easting |
563068 |
|
|
|
|
|
Northing |
4385357 |
|
|
|
|
|
Az. |
106 |
degrees |
|
|
|
|
Dip |
-80 |
degrees |
|
|
|
|
Depth |
274.32 |
metres |
|
|
|
|
|
|
|
|
|
|
|
From (m) |
To (m) |
Interval (m) |
Zn (%) |
Pb (%) |
Zn+Pb (%) |
|
164.59 |
265.18 |
100.58 |
6.58 |
0.41 |
6.99 |
|
Including |
|
164.59 |
179.83 |
15.24 |
17.98 |
2.26 |
20.24 |
|
246.89 |
251.46 |
4.57 |
22.20 |
0.05 |
22.25 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
RC Hole |
LM16-57 |
|
|
|
|
|
Easting |
563228 |
|
|
|
|
|
Northing |
4384995 |
|
|
|
|
|
Az. |
160 |
degrees |
|
|
|
|
Dip |
-90 |
degrees |
|
|
|
|
Depth |
71.63 |
metres |
|
|
|
|
|
|
|
|
|
|
|
From (m) |
To (m) |
Interval (m) |
Zn (%) |
Pb (%) |
Zn+Pb (%) |
|
6.10 |
53.34 |
47.24 |
6.01 |
0.43 |
6.44 |
|
Including |
|
16.76 |
24.38 |
7.62 |
21.23 |
1.82 |
23.05 |
|
39.62 |
45.72 |
6.10 |
13.25 |
0.62 |
13.87 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
RC Hole |
LM16-58 |
|
|
|
|
|
Easting |
563228 |
|
|
|
|
|
Northing |
4384995 |
|
|
|
|
|
Az. |
160 |
degrees |
|
|
|
|
Dip |
-45 |
degrees |
|
|
|
|
Depth |
51.82 |
metres |
|
|
|
|
|
|
|
|
|
|
|
From (m) |
To (m) |
Interval (m) |
Zn (%) |
Pb (%) |
Zn+Pb (%) |
|
3.05 |
44.20 |
41.15 |
5.76 |
0.38 |
6.14 |
|
including |
|
12.19 |
19.81 |
7.62 |
22.71 |
1.36 |
24.07 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
RC Hole |
LM16-59 |
|
|
|
|
|
Easting |
563247 |
|
|
|
|
|
Northing |
4385006 |
|
|
|
|
|
Az. |
160 |
degrees |
|
|
|
|
Dip |
-90 |
degrees |
|
|
|
|
Depth |
91.44 |
metres |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
From (m) |
To (m) |
Interval (m) |
Zn (%) |
Pb (%) |
Zn+Pb (%) |
|
60.96 |
68.58 |
7.62 |
2.58 |
0.03 |
2.61 |
|
including |
|
60.96 |
65.53 |
4.57 |
3.12 |
0.04 |
3.16 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
LM-16-60 |
|
|
|
|
|
|
No
significant results |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
RC Hole |
LM16-61 |
|
|
|
|
|
Easting |
563281 |
|
|
|
|
|
Northing |
4384988 |
|
|
|
|
|
Az. |
160 |
degrees |
|
|
|
|
Dip |
-90 |
degrees |
|
|
|
|
Depth |
106.68 |
metres |
|
|
|
|
|
|
|
|
|
|
|
From (m) |
To (m) |
Interval (m) |
Zn (%) |
Pb (%) |
Zn+Pb (%) |
|
74.68 |
89.92 |
15.24 |
6.47 |
0.99 |
7.46 |
|
including |
|
74.68 |
80.77 |
6.10 |
11.02 |
2.32 |
13.34 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
RC
Hole |
LM16-62 |
|
|
|
|
|
Easting |
563281 |
|
|
|
|
|
Northing |
4384988 |
|
|
|
|
|
Az. |
160 |
degrees |
|
|
|
|
Dip |
-45 |
degrees |
|
|
|
|
Depth |
91.44 |
metres |
|
|
|
|
|
|
|
|
|
|
|
From (m) |
To (m) |
Interval (m) |
Zn (%) |
Pb (%) |
Zn+Pb (%) |
|
65.53 |
68.58 |
3.05 |
8.18 |
1.37 |
9.55 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Notes: True widths are not given as it is not
possible to determine the true width of the various zones of
mineralization at this time.
Sample Preparation and Quality
Control
Supervision and organization of the reverse
circulation drilling chip samples was undertaken by Nevada Zinc
personnel. Samples were collected at 1.52 metre intervals
from a rotating wet splitter assembly attached to the drill rig.
Chip tray samples were collected from the reject side of the wet
splitter. The splitter was adjusted to produce 4.5-9.0 kgs. of
sample. Samples were collected from the drill in cloth bags
by employees of New Frontier Drilling under the Company’s
supervision. Samples were catalogued by Nevada Zinc’s
geologists and stored in a secure location. Certified
reference standards were placed in the sample stream of each drill
hole at random intervals. Blank material was also inserted at
random intervals.
Assay Techniques
Preparation of the samples was done at the ALS
Chemex Elko, NV facility. A 250 gram master pulp was taken
then splits were sent to ALS’s North Vancouver, BC facility or
their Reno, NV facility. A 48 element package using a 4 acid
digestion with ICP-AES and ICP-MS was completed on all samples. For
lead and zinc values exceeding the limits of the 48 element package
(1% zinc or lead), the procedure was to use a 4 acid digestion with
ICP-AES or AAS finish (ore grade analysis). In the case of
values exceeding the limits of the ore grade analysis (30% zinc,
20% lead), the procedure was to use specialized titration
methods.
Laboratory QA/QC
Quality control samples from the lab include
numerous control blanks, duplicates and standards. Reference
standards used include OREAS-133b, OREAS-134b, OGGeo08, and
CZN-4. No significant issues were noted with analytical
accuracy or precision.
ALS’s Reno, Elko, and North Vancouver locations
all have ISO/IEC 17025:2005 accreditation.
Bruce Durham, P.Geo, is a qualified person, as
that term is defined by National Instrument 43-101, and on behalf
of the Company has approved the contents contained in this press
release.
Zinc Information
Teck, the world’s third largest zinc miner
provided a review of the zinc market in its shareholder day
presentation (March 30, 2016):
http://www.teck.com/investors/presentations-webcasts/teck-s-investor-and-analyst-day---march-30
slides 111-117. The slides clearly depict a looming,
significant zinc deficit for many years to come due to
growing demand for zinc offset by mine closures and a lack of new
investment.
The current global weighted average mine grade
for zinc operations, both open pit and underground, is now below 5%
zinc (see Teck ppt).
Additional zinc information is also available on
the Nevada Zinc website (www.nevadazinc.com).
About Nevada Zinc
Nevada Zinc is a discovery driven mineral
exploration company with a proven management team focussed on
identifying unique opportunities in mineral exploration that can
provide significant value to its shareholders. The Company’s
existing zinc and gold projects are located in Nevada and Yukon,
respectively.
The Lone Mountain Project
While the Company maintains its highly
prospective portfolio of Yukon gold properties and continues to
advance them, the current focus of the Company is the exploration
and advancement of the Project comprised of 224 claims
covering approximately 4,000 acres near Eureka, Nevada.
The Project is located in east-central Nevada
and is easily accessible via paved and gravel roads northwesterly
from Eureka where all essential services are available. The Project
includes options, leases or purchase agreements to acquire
100% interests in all properties along the key structural trend for
more than 3 kilometres.
Neither the TSX Venture Exchange nor its Regulation Services
Provider (as that term is defined in the policies of the TSX
Venture Exchange) accepts responsibility for the adequacy or
accuracy of this release.
This news release may contain forward-looking statements
including but not limited to comments regarding the timing and
content of upcoming work programs, geological interpretations,
receipt of property titles, potential mineral recovery processes,
etc. Forward-looking statements address future events and
conditions and therefore, involve inherent risks and
uncertainties. Actual results may differ materially from
those currently anticipated in such statements.
For further information contact:
Nevada Zinc Corporation
Suite 1660, 141 Adelaide St. West
Toronto, Ontario M5H 3L5
Tel: 416-504-8821
Bruce Durham, President and CEO
bdurham@nevadazinc.com
www.nevadazinc.com
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